Question

If a mutation occurs such that photosystem ii no longer functions as efficiently as it should, what might be most directly affected?

Answer 1

Out of the following given choices;

a) The amount of oxygen produced

b) The rate of ATP synthesis by ATP synthase in the chloroplast

c) The rate at which NADPH is produced

d) The rate at which the protons are transported into the thylakoid

The answer is; A

The photosystem captures energy from sunlight and uses it to split a water molecule.   After splitting the water molecule (by taking an electron), the protein complex transports the electron to plastoquinone. The splitting of water molecules results in evolving of oxygen molecules. The hydrogen is what is used to reduce carbon dioxide to glucose.

Answer 2

The amount of oxygen to be generated will be affected directly.

Further Explanation:

Photosystem is responsible for photosynthetic light reactions of algae, bacteria, and plant.

There are 2 photosystems:

• Photosystem-1  
• Photosystem-2

Photosystem-1 plays the main role and utilizes light energy in order to generate high energy carriers such as NADPH as well as ATP. They use p700 photoreceptor and they absorb light of longer wavelength. In this photolysis of water does not occur.

On the contrary, photosystem-2 refers to the protein complex found in the light-dependent reactions of the oxygenic photosynthesis. They present in the thylakoid membrane of the plants, cyanobacteria, and algae. They absorb the shorter wavelength of light. In photosystem 2 photolysis of water occur.

The photosystem absorbs the energy from the sunlight and utilizes it to break the water molecule. After this, the protein complex sends the electron towards the plastoquinone. The breaking of the water molecules leads to the evolution of oxygen molecules. The water is what is utilized to lower the carbon dioxide to a glucose molecule.

Learn more:

1. Learn more about cellular respiration brainly.com/question/543244
2. Learn more about diffusion brainly.com/question/1386629
3. Learn more about phospholipid bilayer brainly.com/question/751529

Answer Details

Grade: High School

Subject: Biology

Chapter: Photosynthesis  

Keywords:

Oxygen, photosynthesis, photosystems 1, photosystem 2, water molecule, carbon dioxide, glucose, evolution, sunlight, hydrogen.